BEIJING, Nov. 28 -- The Chinese PLA Southern Theater Command on Thursday sent  its naval and air force troops to conduct combat readiness patrols in the territorial waters and airspace around China's Huangyan Dao, according to a written statement released by the theater command. 

Since November, the theater command has organized its naval and air force troops to continuously carry out patrols in waters and airspace around Huangyan Dao, and further strengthen the control over relevant waters and airspace, in a bid to resolutely safeguard China's national sovereignty and security, and maintain peace and stability in the South China Sea.